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Tang H, Kojima T, Kazumi K, Fukami K, Sakaguchi H. Platinum Nanoparticles Bonded with Carbon Nanotubes for High-Performance Ampere-Level All-Water Splitting. ACS OMEGA 2024; 9:21378-21387. [PMID: 38764639 PMCID: PMC11097151 DOI: 10.1021/acsomega.4c01662] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/20/2024] [Revised: 04/17/2024] [Accepted: 04/25/2024] [Indexed: 05/21/2024]
Abstract
Platinum nanoparticles loaded on a nitrogen-doped carbon nanotubes exhibit a brilliant hydrogen evolution reaction (HER) in an alkaline solution, but their bifunctional hydrogen and oxygen evolution reaction (OER) has not been reported due to the lack of a strong Pt-C bond. In this work, platinum nanoparticles bonded in carbon nanotubes (Pt-NPs-bonded@CNT) with strong Pt-C bonds are designed toward ultralow overpotential water splitting ability in alkaline solution. Benefit from the strong interaction between platinum and high conductivity carbon nanotube substrates through the Pt-C bond also the platinum nanoparticles bonded in carbon nanotube can provide more stable active sites, as a result, the Pt-NPs-bonded@CNT exhibits excellent hydrogen evolution in acid and alkaline solution with ultralow overpotential of 0.19 and 0.23 V to reach 1000 mA cm-2, respectively. Besides, it shows superior oxygen evolution electrocatalysis in alkaline solution with a low overpotential of 1.69 V at 1000 mA cm-2. Furthermore, it also exhibits high stability over 110 h against the evolution of oxygen and hydrogen at 1000 mA cm-2. This strategy paves the way to the high performance of bifunctional electrocatalytic reaction with extraordinary stability originating from optimized electron density of metal active sites due to strong metal-substrate interaction.
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Affiliation(s)
- Hong Tang
- Institute
of Advanced Energy, Kyoto University, Kyoto 611-0011, Japan
| | - Takahiro Kojima
- Institute
of Advanced Energy, Kyoto University, Kyoto 611-0011, Japan
| | - Kenji Kazumi
- Department
of Materials Science and Engineering, Kyoto
University, Kyoto 606-8501, Japan
| | - Kazuhiro Fukami
- Department
of Materials Science and Engineering, Kyoto
University, Kyoto 606-8501, Japan
| | - Hiroshi Sakaguchi
- Department
of Materials Science and Engineering, Kyoto
University, Kyoto 606-8501, Japan
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Zhang Y, Lan J, Xu Y, Yan Y, Liu W, Liu X, Gu S, Zhou J, Wang M. Ultrafine PtCo alloy by pyrolysis etching-confined pyrolysis for enhanced hydrogen evolution. J Colloid Interface Sci 2024; 660:997-1009. [PMID: 38290326 DOI: 10.1016/j.jcis.2024.01.124] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2023] [Revised: 01/14/2024] [Accepted: 01/17/2024] [Indexed: 02/01/2024]
Abstract
Zeolitic imidazolate framework-67 (ZIF-67) has been widely used as a precursor to developing efficient PtCo alloy catalysts for hydrogen evolution reaction (HER). However, traditional in-situ pyrolysis strategies involve complicated interface structure modulating processes between ZIF-67 and Pt precursors, challenging large-scale synthesis. Herein, a "pyrolysis etching-confined pyrolysis" approach is developed to design confined PtCo alloy in porous frameworks of onion carbon derived from ZIF-67. The confined PtCo alloy with Pt content of only 5.39 wt% exhibits a distinct HER activity in both acid (η10: 5 mV and Tafel: 9 mV dec-1) and basic (η10: 33 mV and Tafel: 51 mV dec-1) media and a drastic enhancement in stability. Density functional theory calculations reveal that the strong electronic interaction between Pt and Co allows favorable electron redistribution, which affords a favorable hydrogen spillover on PtCo alloy compared with that of pristine Pt(111). Operational electrochemical impedance spectroscopy demonstrates that the Faraday reaction process is facilitated under acidic conditions, while the transfer of intermediates through the electric double-layer region under alkaline conditions is accelerated. This work not only offers a universal route for high-performance Pt-based alloy catalysts with metal-organic framework (MOF) precursors but also provides experimental evidence for the role of the electric double layer in electrocatalysis reactions.
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Affiliation(s)
- Yi Zhang
- College of Materials Science and Engineering, Taiyuan University of Technology, Taiyuan 030024, China
| | - Jianhong Lan
- College of Materials Science and Engineering, Taiyuan University of Technology, Taiyuan 030024, China
| | - Yike Xu
- College of Materials Science and Engineering, Taiyuan University of Technology, Taiyuan 030024, China
| | - Yuanyuan Yan
- College of Materials Science and Engineering, Taiyuan University of Technology, Taiyuan 030024, China
| | - Weifeng Liu
- College of Materials Science and Engineering, Taiyuan University of Technology, Taiyuan 030024, China
| | - Xuguang Liu
- College of Materials Science and Engineering, Taiyuan University of Technology, Taiyuan 030024, China.
| | - Shaonan Gu
- Key Laboratory of Fine Chemicals in Universities of Shandong, Jinan Engineering Laboratory for Multi-scale Functional Materials, School of Chemistry and Chemical Engineering, Qilu University of Technology (Shandong Academy of Sciences), Jinan 250353, China.
| | - Jiadong Zhou
- Key Lab of Advanced Optoelectronic Quantum Architecture and Measurement (Ministry of Education), Beijing Key Lab of Nanophotonics & Ultrafine Optoelectronic Systems, and School of Physics, Beijing Institute of Technology, Beijing 100081, China
| | - Meiling Wang
- College of Materials Science and Engineering, Taiyuan University of Technology, Taiyuan 030024, China; Key Laboratory of Advanced Energy Materials Chemistry (Ministry of Education), Nankai University, Tianjin 300071, China.
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Hao TT, Guan SJ, Zhang D, Zhang P, Cao Y, Hou J, Suen NT. Correlation between d Electrons and the Sweet Spot for the Hydrogen Evolution Reaction: Is Platinum Always the Best Electrocatalyst? Inorg Chem 2024; 63:5076-5082. [PMID: 38447153 DOI: 10.1021/acs.inorgchem.3c04601] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/08/2024]
Abstract
Herein, two Laves intermetallic series, ZrCo1.75M0.25 and NbCo1.75M0.25 (M = Fe, Co, Ni, Ru, Rh, Pd, Os, Ir, and Pt), were synthesized, and their hydrogen evolution reaction (HER) activities were examined to reveal the influence of d electrons to the corresponding HER activities. Owing to the different electronegativity between Zr and Nb (χZr = 1.33; χNb = 1.60), Co and/or M elements receive more electrons in ZrCo1.75M0.25 than that of the Nb one. This leads to the overall weak H adsorption energy (ΔGHad) of ZrCo1.75M0.25 series compared to that of NbCo1.75M0.25 and rationalizes well the superior HER activity of the Rh member compared to that of the Pt one in the ZrCo1.75M0.25 series. Under industrial conditions (333 K, 6.0 M KOH), ZrCo1.75Rh0.25 only requires an overpotential of 110 mV to reach the current density of 500 mA/cm2 and can be operated at high current density over 400 h. This work demonstrates that with a proper combination between elements in intermetallic phases, one can manipulate d electrons of the active metal to be closer to the sweet spot (ΔGHad = 0). The Pt member may no longer exhibit the best HER activity in series, and all elements exhibit the potential to outperform the Pt member in the HER with careful control of the d electron population.
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Affiliation(s)
- Tong Tong Hao
- College of Chemistry & Chemical Engineering, Institute of Technology for Carbon Neutralization, Yangzhou University, Yangzhou 225002, China
| | - Si-Jia Guan
- College of Chemistry & Chemical Engineering, Institute of Technology for Carbon Neutralization, Yangzhou University, Yangzhou 225002, China
| | - Dong Zhang
- College of Chemistry & Chemical Engineering, Institute of Technology for Carbon Neutralization, Yangzhou University, Yangzhou 225002, China
| | - Peng Zhang
- College of Chemistry & Chemical Engineering, Institute of Technology for Carbon Neutralization, Yangzhou University, Yangzhou 225002, China
| | - Yu Cao
- College of Environmental Science and Engineering, Yangzhou University, Yangzhou, Jiangsu 225009, China
| | - Jianhua Hou
- College of Environmental Science and Engineering, Yangzhou University, Yangzhou, Jiangsu 225009, China
| | - Nian-Tzu Suen
- College of Chemistry & Chemical Engineering, Institute of Technology for Carbon Neutralization, Yangzhou University, Yangzhou 225002, China
- State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou 350002, P. R. China
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Thiruvengadam R, Easwaran M, Rethinam S, Madasamy S, Siddiqui SA, Kandhaswamy A, Venkidasamy B. Boosting plant resilience: The promise of rare earth nanomaterials in growth, physiology, and stress mitigation. PLANT PHYSIOLOGY AND BIOCHEMISTRY : PPB 2024; 208:108519. [PMID: 38490154 DOI: 10.1016/j.plaphy.2024.108519] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/13/2024] [Revised: 02/21/2024] [Accepted: 03/08/2024] [Indexed: 03/17/2024]
Abstract
Rare earth elements (REE) have been extensively used in a variety of applications such as cell phones, electric vehicles, and lasers. REEs are also used as nanomaterials (NMs), which have distinctive features that make them suitable candidates for biomedical applications. In this review, we have highlighted the role of rare earth element nanomaterials (REE-NMs) in the growth of plants and physiology, including seed sprouting rate, shoot biomass, root biomass, and photosynthetic parameters. In addition, we discuss the role of REE-NMs in the biochemical and molecular responses of plants. Crucially, REE-NMs influence the primary metabolites of plants, namely sugars, amino acids, lipids, vitamins, enzymes, polyols, sorbitol, and mannitol, and secondary metabolites, like terpenoids, alkaloids, phenolics, and sulfur-containing compounds. Despite their protective effects, elevated concentrations of NMs are reported to induce toxicity and affect plant growth when compared with lower concentrations, and they not only induce toxicity in plants but also affect soil microbes, aquatic organisms, and humans via the food chain. Overall, we are still at an early stage of understanding the role of REE in plant physiology and growth, and it is essential to examine the interaction of nanoparticles with plant metabolites and their impact on the expression of plant genes and signaling networks.
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Affiliation(s)
- Rekha Thiruvengadam
- Center for Global Health Research, Saveetha Medical College, Saveetha Institute of Medical and Technical Sciences (SIMATS), Saveetha University, Chennai, 600077, India
| | - Maheswaran Easwaran
- Department of Research Analytics, Saveetha Dental College and Hospitals, Saveetha Institute of Medical and Technical Sciences, Saveetha University, Chennai, 600077, Tamil Nadu, India
| | - Senthil Rethinam
- Department of Pharmacology, Saveetha Dental College and Hospitals, Saveetha Institute of Medical and Technical Sciences, Saveetha University, Chennai, 600077, Tamil Nadu, India
| | - Sivagnanavelmurugan Madasamy
- Department of Research Analytics, Saveetha Dental College and Hospitals, Saveetha Institute of Medical and Technical Sciences, Saveetha University, Chennai, 600077, Tamil Nadu, India
| | - Shahida Anusha Siddiqui
- Technical University of Munich Campus Straubing for Biotechnology and Sustainability, Essigberg 3, 94315, Straubing, Germany; German Institute of Food Technologies (DIL e.V.), Prof.-von-Klitzing Str. 7, 49610, D-Quakenbrück, Germany
| | - Anandhi Kandhaswamy
- Post Graduate Research Department of Microbiology, Dhanalakshmi Srinivasan College of Arts and Science for Women (Autonomous), Perambalur, 621212, Tamil Nadu, India
| | - Baskar Venkidasamy
- Department of Oral & Maxillofacial Surgery, Saveetha Dental College and Hospitals, Saveetha Institute of Medical and Technical Sciences, Saveetha University, Chennai, 600077, Tamil Nadu, India.
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